Siemens SMBKFD3 Fd 3-phase Main Sub-feed Breaker Kit

Product Description

The SIEMENS SMBKFD3 is a 3-phase main and sub-feed breaker kit designed for use with FD-frame loadcenters and distribution panels. This kit provides the hardware and breaker components needed to configure a panel for either main breaker or sub-feed breaker operation in a 3-phase electrical distribution system. Licensed electricians install this kit during new panel installations or retrofits where main disconnect or sub-feed functionality is required at the distribution point.

This kit is suited for commercial and industrial electrical distribution applications where 3-phase power is present. It is used in loadcenters requiring FD-frame breaker configurations, including main disconnect setups and sub-feed arrangements feeding downstream panels. Installation is performed by qualified electricians following applicable NEC requirements for panel and distribution equipment.

Key Features

• Supports 3-phase main breaker and sub-feed breaker configurations
• Designed for FD-frame Siemens loadcenters and distribution panels
• Kit format includes components needed for complete installation
• Compact form factor suitable for standard panel enclosures

Compatibility

Designed as an OEM-style kit for use with Siemens FD-frame 3-phase loadcenters and distribution panels requiring main or sub-feed breaker configurations.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the panel and all upstream power sources before beginning work. Verify the panel is rated for FD-frame breaker components before installing this kit. Follow Siemens installation documentation for torque and wiring procedures specific to the panel model.

Technical Specifications

• Phase: 3-Phase
• Frame Type: FD
• Configuration: Main and Sub-Feed Breaker Kit
• Dimensions (L x W x H): 13.78 inches x 8.661 inches x 3.937 inches
• Weight: 4.012 pounds
• UPC: 78364332298

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: SMBKFD3